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Tooth ankylosis refers to a fusion between a tooth and underlying bony support tissues. In some species, this is a normal process that occurs during the formation or maintenance of the dentition. [1] By contrast, in humans tooth ankylosis is pathological, whereby a fusion between alveolar bone and the cementum of a tooth occurs.
External replacement root resorption (ERRR) occurs due to replacement of the root surface with bone, i.e. ankylosis. ERRR can be further categorized as transient or progressive depending on the extent of periodontal ligament damage with the latter resulting in complete root resorption. [16]
Once this process starts, it is irreversible, and the tooth will eventually fall out. In growing children, this can cause bone development problems because the replacement resorption (also termed ankylosis) attaches the tooth firmly to the jawbone and stops normal tooth eruption and impedes normal jaw growth. [citation needed]
Ankylosis is common in the anterior tooth after trauma and can be referred to as replacement resorption. In this process PDL cells are destroyed and as a result the cells of the alveolar bone will perform most of the healing. Radiographic examination of a patient with ankylosis may also reveal a loss of the PDL and bony bridging. [citation needed]
Complete fusion of the spine can lead to a reduced range of motion and increased pain, as well as total joint destruction which could lead to a joint replacement. [ 46 ] Osteoporosis is common in ankylosing spondylitis, both from chronic systemic inflammation and decreased mobility resulting from AS.
When the structures outside the joint are affected, the term "false ankylosis" has been used in contradistinction to "true ankylosis", in which the disease is within the joint. When inflammation has caused the joint-ends of the bones to be fused together, the ankylosis is termed osseous or complete and is an instance of synostosis. Excision of ...
There are many recognized spinal diseases, some more common than others. Spinal disease also includes cervical spine diseases, which are diseases in the vertebrae of the neck. A lot of flexibility exists within the cervical spine and because of that, it is common for an individual to damage that area, especially over a long period of time.
Bone tissue is removed by osteoclasts, and then new bone tissue is formed by osteoblasts. Both processes utilize cytokine (TGF-β, IGF) signalling.In osteology, bone remodeling or bone metabolism is a lifelong process where mature bone tissue is removed from the skeleton (a process called bone resorption) and new bone tissue is formed (a process called ossification or new bone formation).